Solanum physalifolium, commonly known as Argentine nightshade or hairy nightshade, is an annual herb that originates from open woodlands and scrub areas in Argentina, Bolivia, and Chile. It has since naturalized in various regions, including Australia, New Zealand, Europe, western Canada, and the northwestern United States. The plant typically grows to a height of 4-35 inches with ovoid to deltoid leaves that are covered in fine hairs, giving it a distinctive texture. The flowers are small, white, and appear in clusters, followed by green to black berries that are not edible and can be toxic.

Argentine nightshade is known for its rapid growth and adaptability to various soil conditions, which contributes to its invasive potential outside its native range. It is often found in disturbed sites, agricultural land, and along roadsides. In cultivation, it requires minimal care, thriving in full sun to part shade and tolerating a wide range of soil types, though it prefers well-drained soils. Due to its invasive nature, it is not commonly used in gardens but may be of interest for research or educational purposes. Gardeners should be cautious and check local regulations before planting, as it can outcompete native species and disrupt local ecosystems.CC BY-SA 4.0